.video-grid .colVideoList {
    position: relative;
    width: 100%;
    padding-right: 6px;
    padding-left: 6px;
    background-color: aliceblue;
}
.colVideoList{
    -webkit-box-flex: 0;
    -ms-flex: 0 0 50%;
    flex: 0 0 50%;
    max-width: 50%;
}
@media (min-width: 576px) {
    .colVideoList {
        -webkit-box-flex: 0;
        -ms-flex: 0 0 25%;
        flex: 0 0 25%;
        max-width: 25%;
    }
}
/* @media (min-width: 576px) {
    .colVideoList {
        -webkit-box-flex: 0;
        -ms-flex: 0 0 33.33333333%;
        flex: 0 0 33.33333333%;
        max-width: 33.33333333%;
    }
} */
.video-elem .display {
    position: relative;
    overflow: hidden;
    background-color: #ced4da;
    color: #fff;
}

.video-elem .display .scale {
    margin-top: 60%;
}
.video-elem .display .img {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    background-size: cover;
    background-repeat: no-repeat;
    background-position: 50%;
    border-radius: 5px;
}
.video-elem .title {
    display: block;
    height: 2.4rem;
    line-height: 1.2rem;
    overflow: hidden;
    font-size: .9rem;
}
.video-elem .display .layer {
    padding: 0 .7rem;
    border: none;
    position: absolute;
    bottom: .25rem;
    font-size: .875rem;
    right: .5rem;
    background-color: rgba(0,0,0,.3);
    color: #f2f2f2;
}

table{
    background: #ffffff;
    table-layout: fixed;
    word-break:break-all;
}

.tb-filename {
    display: inline-block;
    width: 100%;
    overflow: hidden;
    white-space: nowrap;
    text-overflow:ellipsis;
}

.breadcrumb-item.active {
    display: inline-block;
    width: 10em;
    overflow: hidden;
    white-space: nowrap;
    text-overflow:ellipsis;
}

*::-webkit-scrollbar {
    /*滚动条整体样式*/
    width : 10px;  /*高宽分别对应横竖滚动条的尺寸*/
    height: 1px;
}
*::-webkit-scrollbar-thumb {
    /*滚动条里面小方块*/
    border-radius   : 10px;
    background-color: skyblue;
    background-image: -webkit-linear-gradient(
        45deg,
        rgba(255, 255, 255, 0.2) 25%,
        transparent 25%,
        transparent 50%,
        rgba(255, 255, 255, 0.2) 50%,
        rgba(255, 255, 255, 0.2) 75%,
        transparent 75%,
        transparent
    );
}
*::-webkit-scrollbar-track {
    /*滚动条里面轨道*/
    box-shadow   : inset 0 0 5px rgba(0, 0, 0, 0.2);
    background   : #ededed;
    border-radius: 10px;
}